Check for clock_nanosleep so mtime compiles (linking is another matter)

diff --git a/extras/buildsystem/cmake/include/config.cmake b/extras/buildsystem/cmake/include/config.cmake
index 5425556d8b486f6045fce2354b3d4fd5e9c59cde..a01f5c78ff9b5bc45a348479c85d16d7cc4cba5f 100644 (file)
--- a/extras/buildsystem/cmake/include/config.cmake
+++ b/extras/buildsystem/cmake/include/config.cmake
@@ -78,6 +78,7 @@ find_library(HAVE_ICONV iconv)
 set( ICONV_CONST " " )
 
 check_library_exists(dl dlopen "" HAVE_DL_DLOPEN)
+check_library_exists(rt clock_nanosleep "" HAVE_CLOCK_NANOSLEEP)
 
 ###########################################################
 # Other check